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TDA8933T Datasheet(PDF) 13 Page - NXP Semiconductors |
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TDA8933T Datasheet(HTML) 13 Page - NXP Semiconductors |
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13 / 47 page  TDA8933_1 © NXP B.V. 2007. All rights reserved. Preliminary data sheet Rev. 01 — 15 May 2007 13 of 47 NXP Semiconductors TDA8933 Class-D audio amplifier 8.7 Output voltage buffers When pin POWERUP is set HIGH, the half supply output voltage buffers are switched on in asymmetrical supply configuration. The start-up will be pop free because the device starts switching when the capacitor on pin HVPREF and the SE capacitors are completely charged. Output voltage buffers: • Pins HVP1 and HVP2: The time required for charging the SE capacitor depends on its value. The half supply voltage output is disabled when the TDA8933 is used in a symmetrical supply application. • Pin HVPREF: This output voltage reference buffer charges the capacitor on pin HVPREF. • Pin INREF: This output voltage reference buffer charges the input reference capacitor on pin INREF. Pin INREF applies the bias voltage for the inputs. |
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